Invar 36 Round Bar Supplier India – Alloy 36, UNS & Industrial Supply
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Table of Contents
- Invar 36 Round Bar Supplier India
- What Is Invar 36?
- Invar 36 International Designations
- Why Industries Use Invar 36
- Invar 36 Round Bar for Industrial Requirements
- Invar 36 Specifications and Standards
- Invar 36 MTC and Material Documentation
- What to Include in an Invar 36 Enquiry
- Invar 36 Applications
- Why Choose Manan Steel & Metals?
- How to Enquire for Invar 36 Round Bar
- Frequently Asked Questions
- Conclusion
Invar 36 Round Bar Supplier India
Finding the right Invar 36 Round Bar Supplier India can be important when the material is required for precision engineering, aerospace tooling, optical equipment, cryogenic systems or specialized industrial applications.
Invar 36 is a nickel-iron controlled-expansion alloy known for its unusually low thermal expansion.
It is also identified by names such as:
- Alloy 36
- Ni36
- 1.3912
- Invar 36
- Nilo 36
Depending on the exact product specification and variant, different UNS designations can also be encountered in technical documentation.
For industrial buyers, selecting a supplier is therefore not simply about finding the lowest quoted price. The buyer should also confirm the material designation, specification, dimensions, condition, certification and supply requirements.
Manan Steel & Metals supplies Invar 36 Round Bars for industrial and engineering requirements from Mumbai, India.
What Is Invar 36?
Invar 36 is a nickel-iron alloy containing approximately 36% nickel.
Its main engineering characteristic is its low coefficient of thermal expansion.
When temperature changes, ordinary metals generally change dimensions to a greater extent. Invar 36 experiences substantially lower dimensional change within its useful low-expansion temperature range.
Carpenter Technology describes Invar 36 as a 36% nickel-iron alloy with thermal expansion approximately one-tenth that of carbon steel up to about 204°C (400°F). (carpentertechnology.com)
This makes the material particularly useful where dimensional stability is important.
Invar 36 International Designations
Industrial buyers may encounter different names for the same material family when searching internationally.
| Designation | Common Reference |
|---|---|
| Invar 36 | Commercial name |
| Alloy 36 | Alloy designation |
| Ni36 | Nickel-iron designation |
| 1.3912 | Werkstoff number |
| Nilo 36 | Industrial/commercial designation |
| UNS K93600 | Listed for certain Ni36 products |
| UNS K93601 | Associated with Invar materials |
| UNS K93603 | Associated with Invar 36 under certain specifications |
| ASTM F1684 | Invar material specification |
| ASTM B753 | Associated with certain Alloy 36 products |
The exact designation should always be confirmed against the customer’s required product specification.
voestalpine identifies Alloy 36 / 1.3912 / Invar 36 and lists ASTM F1684 among the relevant specifications for bar products. (voestalpine.com)
Why Designation Accuracy Matters
A buyer searching for:
“Invar 36 bar”
may find products listed under:
“Alloy 36,” “Ni36,” “1.3912” or a relevant UNS designation.
Using these alternate designations in a technical enquiry can help reduce confusion during international sourcing.
Why Industries Use Invar 36
The major reason engineers consider Invar 36 is dimensional stability under temperature changes.
This characteristic can be valuable in:
Aerospace
Used for specialized composite tooling, dies and precision components.
Optical and Laser Equipment
Used where maintaining the relative position of components is important.
Cryogenic Engineering
Used for selected components exposed to very low temperatures.
LNG Equipment
Used in specialized LNG-related systems and tanker applications.
Electronics
Used in certain electronic and dimensional-control applications.
Precision Engineering
Used for instruments, fixtures and components where thermal expansion needs to be controlled.
Carpenter Technology, Hempel Special Metals and Sandmeyer Steel all identify applications across aerospace, optical, cryogenic and precision engineering sectors. (carpentertechnology.com) (hempel-metals.com)
Invar 36 Round Bar for Industrial Requirements
Invar 36 Round Bar is useful when the required component or machining process begins with a cylindrical raw material.
Depending on the requirement, round bar can be used for:
- Precision-machined components
- Aerospace tooling components
- Optical equipment components
- Industrial fixtures
- Measuring equipment
- Specialized mechanical parts
- Cryogenic components
- Engineering prototypes
The final suitability depends on the design, operating temperature, mechanical loading, dimensional tolerances and applicable specification.
For this reason, an enquiry should provide the complete technical requirement rather than only the material name.
Invar 36 Specifications and Standards
Industrial buyers should identify the required specification before ordering.
Published industry references associate Invar 36 and related Alloy 36 products with standards including:
- ASTM F1684
- ASTM B753
- EN-related material designations
- Customer-specific specifications
However, the applicable standard can depend on the product form and material condition.
For example, Carpenter Technology lists Invar 36 product information separately from other controlled-expansion alloy products, while voestalpine identifies ASTM F1684 for bar. (carpentertechnology.com) (voestalpine.com)
Before placing an order, confirm:
- Material designation
- Applicable standard
- Product form
- Diameter
- Length
- Quantity
- Condition
- Dimensional tolerance
- Inspection requirement
- Certification requirement
This is especially important for aerospace, precision and cryogenic applications.
Invar 36 MTC and Material Documentation
Industrial customers may require a Mill Test Certificate (MTC) with their Invar 36 supply.
An MTC can provide traceability and test information for the supplied material.
Depending on the applicable specification and supply arrangement, documentation may include:
- Material designation
- Heat number
- Chemical composition
- Mechanical test results
- Heat-treatment condition
- Product dimensions
- Applicable standard
- Inspection results
The exact certificate content should be agreed before order confirmation.
Why MTC Matters
An MTC allows the buyer’s technical or quality team to compare the supplied material with the purchase specification.
For critical applications, buyers may also have additional requirements such as:
- Third-party inspection
- Positive Material Identification
- Additional chemical analysis
- Mechanical testing
- Dimensional inspection
- Customer-specific documentation
These requirements should be communicated during the enquiry stage.
What to Include in an Invar 36 Enquiry
A detailed enquiry helps a supplier respond accurately.
Use the following format:
Material: Invar 36 / Alloy 36
Product: Round Bar
Standard: ASTM / EN / Customer Specification
Diameter: Required diameter
Length: Required length
Quantity: Required quantity
Condition: Required condition
MTC: Required / Not Required
Inspection: If applicable
Delivery Location: Destination
Example Industrial Enquiry
Material: Invar 36
Product: Round Bar
Standard: ASTM F1684
Diameter: 30 mm
Length: 3 metres
Quantity: 200 kg
MTC: Required
Delivery: Mumbai
The dimensions and quantity in this example are illustrative. Buyers should replace them with their actual requirement.
Invar 36 Applications
The material’s low thermal expansion makes it relevant to several specialized applications.
Aerospace Composite Tooling
Invar 36 is widely associated with composite tooling and dies.
Its low expansion can help maintain tooling dimensions during elevated-temperature composite manufacturing processes. (sandmeyersteel.com)
Cryogenic Components
The alloy’s low expansion behavior at low temperatures makes it suitable for selected cryogenic engineering requirements.
LNG Equipment
Industry references identify Invar 36 for LNG production, storage and tanker-related applications. (sandmeyersteel.com)
Optical and Laser Systems
Invar 36 can be used in structures and components where temperature-related dimensional changes can affect optical alignment or precision. (carpentertechnology.com)
Electronic Components
Controlled expansion can be useful in certain electronic and precision assemblies.
Measuring Equipment
The material can be considered for components where dimensional stability is important.
Why Choose Manan Steel & Metals?
Manan Steel & Metals is a Mumbai-based supplier of industrial and special metal products.
Our product range includes Invar 36 Round Bars for industrial procurement requirements.
We understand that special alloy enquiries often require more than a material name. Customers may need a specific:
- Diameter
- Length
- Quantity
- Standard
- Material condition
- Certification
- Delivery requirement
Providing these details helps us understand the requirement and work toward an appropriate supply solution.
Industrial Metal Range
Manan Steel & Metals also deals in a range of special and industrial metals, including products in categories such as:
- Monel
- Inconel
- Titanium
- Nitronic
- Nickel alloys
- 17-4 PH
- Alloy A286
- Invar
Explore our round bar range:
Visit the company website:
How to Enquire for Invar 36 Round Bar
If you are sourcing Invar 36 Round Bar in India, send your requirement to Manan Steel & Metals.
For a faster quotation, include:
1. Material: Invar 36 / Alloy 36
2. Diameter: Required size
3. Length: Required length
4. Quantity: Kg / pieces / tonnes
5. Standard: ASTM / EN / customer specification
6. MTC: Required or not required
7. Delivery Location: Destination
Contact Manan Steel & Metals
Manan Steel & Metals
Shop No. 2, Hira Building,
97 Khetwadi Main Road,
Girgaon, Mumbai – 400004, Maharashtra, India
Phone: 7977369869
Email: manansteel@gmail.com
Website: https://www.manansteel.com/
Send your size + quantity + specification and our team can evaluate your Invar 36 requirement.
Frequently Asked Questions
Who supplies Invar 36 round bar in India?
Manan Steel & Metals supplies Invar 36 Round Bars for industrial and engineering requirements. Customers can contact the company with their required size, quantity, specification and certification requirements.
What is Invar 36 also called?
Invar 36 is also commonly referred to as Alloy 36, Ni36, 1.3912 and Nilo 36. Different technical documents may use different UNS designations depending on the exact product and specification.
What is the UNS designation for Invar 36?
UNS designations including K93600, K93601 and K93603 appear in published references for Invar/Alloy 36 materials. The correct designation should be confirmed against the applicable specification rather than assumed from the material name alone.
What is 1.3912 material?
1.3912 is a Werkstoff number associated with Ni36 / Alloy 36 / Invar 36.
What ASTM standard is used for Invar 36 round bar?
ASTM F1684 is an important specification associated with Invar materials, while ASTM B753 is also referenced for certain Alloy 36 products. The appropriate standard depends on the specific product and customer requirement.
Is Invar 36 suitable for aerospace applications?
Invar 36 is used in aerospace-related applications, particularly composite tooling and dies, where low thermal expansion and dimensional stability are important. (sandmeyersteel.com)
Is Invar 36 used for cryogenic applications?
Yes. Published industry sources identify Invar 36 for cryogenic components and related low-temperature applications. The exact material suitability should be checked against the actual service conditions. (hempel-metals.com)
Can I request an MTC with Invar 36 round bar?
Yes, an MTC requirement can be specified during the enquiry. The exact documentation should be agreed with the supplier before order confirmation.
What details are required for an Invar 36 quotation?
The most useful information includes material designation, diameter, length, quantity, applicable standard, condition, MTC requirement and delivery location.
Conclusion
When sourcing Invar 36 Round Bar Supplier India, the material designation is only the starting point.
A successful industrial purchase should clearly establish the material specification, product dimensions, quantity, condition, tolerance, certification and inspection requirements.
Invar 36, also known as Alloy 36, Ni36 and 1.3912, is selected for specialized applications where low thermal expansion and dimensional stability are important.
For aerospace tooling, precision engineering, optical equipment, cryogenic applications and other specialized requirements, the exact specification should be confirmed before procurement.
Manan Steel & Metals supplies Invar 36 Round Bars for industrial requirements.
For enquiries, contact:
Manan Steel & Metals
Shop No. 2, Hira Building, 97 Khetwadi Main Road,
Girgaon, Mumbai – 400004, Maharashtra, India
Phone: 7977369869
Email: manansteel@gmail.com
Website: https://www.manansteel.com/
Send your Invar 36 size, quantity and specification for an industrial enquiry.
Technical References
- Carpenter Technology – Invar 36
https://www.carpentertechnology.com/alloy-finder/invar-36 - Hempel Special Metals – Invar 36
https://www.hempel-metals.com/en/material/exotic-metals/invar-36 - voestalpine Specialty Metals – Alloy 36 / 1.3912 / Invar 36
https://www.voestalpine.com/specialtymetals/eu/en/ni-36-1-3912/ - Sandmeyer Steel – Invar 36
https://www.sandmeyersteel.com/ssc-invar-36/ - Carpenter Technology – Controlled Expansion Alloys
https://www.carpentertechnology.com/blog/selecting-controlled-expansion-alloys